Outlet-valve



H. M. MILLER.

OUTLET VALVE. I APPLICATION FILED JAN. w. 1916.

1,348,233. Patented Aug. 3,1920.

E7 t A H Z A A L; *1? f 6, A I B A I I I I J A HARRY M. MILLER, 0F MILWAUKEE, WISCONSIN.

OUTLET-VALVE.

Specification of Letters Patent.

Patented Aug. 3, 1920.

Application filed January .17, 1916. Seri a.l.No. 72,529.

To all whom it may concern:

Be it known that I, HARRY M. MILLER, a citizen of the United States, residing at Mil: waukee, county of l\lilwaukee,' and State of Wisconsin, have invented new .and useful Improvements in Outlet-Valves, of which the following is a specification.

My invention relates to improvements in outlet valves for radiator systems.

The object of my invention is to provide a valve which can be relied upon to operate under all conditions of ordinary service, which can be easily cleaned or repaired, and in which the incoming water, if-admitted to the valve in a rapid stream, will serve to assist the float in acting quickly and facili-' tate flushing'the casing and valve ports. 7

In the drawings,'-

Figure I is a vertical sectional view ofa valve casing embodying my invention, drawnto a plane cutting the inlet and outlet ports. 1

Fig. II is a fragmentary sectional view, drawn to a plane cutting the-air relief duct.

Fig. III is a horizontal sectional view, drawn to a plane cuttingthe fulcrum brackets, the inlet'duct, however, being shown in full; and Fig. IV is a cross section of the outlet chamber.

Like'parts are identified by the same reference characters throughout the several views. r

A valve casing A is provided with an inlet port B andan outlet port C,-the inlet being locatedin the side near the bottom, and

the outlet port being located in the bottom,

as is usual in such valve mechanisms. The top of the casing is closed by a capA' which is preferably screwed in position uponthe casing wall. Directly opposite the inlet, the wallofthe casing is provided with an extension A, which is hollow and provides an extensionof the casingcavity to receive an auxiliary'outlet chamber E and a valve lever F, both of which project into theextension cavity from the central portion of the casing cavity,f as shown. v The auxiliary outlet chamber is provided near its inner end with a depending tubular projection, the outer surface of which is tapered, and'adapted to fit the'outlet portG. The top wall of-the chamber is provided w1th a fulcrum bracket, comprising two upwardly projectingears,.to which the lever F ispivotally connected by a pivot pinf.- The short arm of Ethe-lever F projects into the lever depressed, and thus holding the valve to its seat, but when water enters the chamber, the float'is thereby lifted and the valve G is pushed downwardly to open position. The float is located in such a position, that the incoming water pushes against its under surface, or against its lower portion, almost in line with the valve lever F, andthe water pressure is thus rendered doubly effective to operate the valve when it enters rapidly enough to-acquire-momentum. This occurs quite frequently under ordinary conditions, and the valve is therefore very effectively kept from sticking in dirtyor greasy water.

The auxiliary chamber is provided with a flange J one side thereof near the bottom. A screw L has threaded engagement with the bottom of the casing and isprovided with a large head, one side of which is cut away. The other side of the screw head is adapted to engage over the flange J as shown in Fig III, but when the screw is rotated a 1 one half turn, the flat side of the head will be adjacent to, but will not engage said flange and the auxiliary chamber may then be lifted out and removed, with the float and valve lever, through the top of the casing. When the capis off, the screw J- can easily'be reached from above and turned to the desired position. p I v To provide for an independent delivery of air from'the'casing,'the wall thereof is provided with a duct K which leads downwardly from the upper portion of the casing cavity to the outlet. The wall of this duct is provided with an inlet port K at its upper end and deliveries through this port are controlled by a valve L which is supported by a stem M. This valve stem carries a screw threaded enlargement M threaded in a-tubular boss projecting from the side of the casing. The boss N has its outer end closed by a'cap 0. By removing the cap the. valve stem may be rotated to adjust the valve to such a position that it will permit a very slow escape of air or steam from the interior of the casing and thus prevent air accumulation. The port K is preferably made large enough to allow a rapid flow of water or steam when fully open, and the valve has its seating face into a broad cone to facilitate flushing operations.

In float operated outlet valve mechanisms, a sudden movement of the float frequently causes it to rap sharply againstthe wall of the casing, thereby producing a metallic sound audible throughout the room if not through other parts of the dwelling, and this tends to cause annoyance.

To overcome this difliculty, my improved valve mechanism is provided with a stop which acts directlyv upon the lever F near the pivot pin 7 in a mannerto limit the up-,

ward movement of the float and prevent it from striking the casing at any point. This stop preferably comprises an arm R which projects above the path of the lever F and is adapted to be struck by the lever when the float moves upwardly. This bracket arm R may be slightly resilient, but in any event,

it is located so close to the fulcrum 7- that the contact of these parts will make no audible sound.

I claima 1. An outlet valve for radiators, including the combination of a casing provided with a side inlet and an outlet in its bottom, and having a lateral extension of the casing cavity located opposite the inlet, an outlet chamber having a tubular outlet projection fitted to the casing outlet, said chamber having an inlet port in its top, avalve within said chamber adapted to close said inlet port against fluid pressure, a lever pivotally supported above said chamber and linked to said valve, and a float having its bottom centrally connected to said lever; said lever having its valve supporting arm in the extension cavity, and its float supporting arm substantially in line with the inlet passage, said lever and the lower portion of the float be ing in the unobstructed direct path of the fluid entering the casing through said inlet, and subject to fluid momentum pressures and scouring eflects of the incoming stream of water. r

2. In an outlet valve mechanism for radi ators, the combination with a casing having an outlet port in its bottom and an extension in one side nearthc bottom, said casing having an inlet opposite the extension, a removable auxiliary outlet chamber having a depending tubular outlet projection seated in the casing outlet, and having also a top inlet within the caslng extension, an interior valve adapted to close such inlet against fluid pressure, a lever pivotally supported from the auxiliary chamber, a float carried by the end of the lever nearest the casing inlet, and a link loosely connecting the valve with the lever within and substantially in the direct line of flow of water entering the casing inlet, whereby the lever, link and valve con ing an inlet opposite the extension, a removable auxiliary outlet chamber having adepending tubular outlet projection seated in the casing outlet, and having also atop in let, an interior valve adapted to close such inlet, a lever pivotally supported from the auxiliary chamber a float on one end of the lever in the path of fluid from the casing inlet, and a link pivotally connecting the other end of the lever with the valve; said auxiliary outlet chamber having a lateral flange and said casing having a rotatable projection adapted in one position to engage said flange, and in another position to release the same. a

4. In an outlet valve mechanism for radiators, the combination with a casing having an outlet port inits bottomand an extension in one side near the bottom, said casing having an inlet opposite the extension, a removable auxiliary outlet chamber having a depending tubular outlet projection seated in the casing outlet, and having also a top inlet, an interior valve adapted to close -such inlet, a lever pivotally supported from the auxiliary chamber and provided with a float in the path of fluid from the casing inlet, and a link pivotally connected with the other end of the lever; said auxiliary outlet chamber having. a lateral flange and said casing having a rotatable projection adapted in one position to engage said flange, and in another position to release the same, a cap for the casing adapted when removed-to aflord access to said rotary projection, and

low the valve, the walls ofthe duct at its upper end being ported for communication between the interior of the casing and the duct, and the opposing wall of the duct being provided with a lateral threaded extension. in line with said port, a nut within said threaded extension, adjustable longitudinally thereof, a valve stem rigidly connected with said nut and provided witha valve controlling the passage of fluid from the interior of thecasing into said .duct,

said valve being provided with an operating stem on the opposite side of said nut, and a cap having threaded engagement with said extension and normally covering the operating end of the valve stem.

6. An outlet valve for radiator systems including the combination of a casing having inlet and outlet ports, and float controlled valve and valve mechanism controlling deliveries of water through said outlet, said casing having a duct leading from its upper portion downwardly in the walls thereof to the outlet below the valve, a regulating valve controlling the inlet to said duct, said casing having a normally capped aperture affording a means of access to the regulating valve, the valve having a stem in screw threaded engagement with the walls of said aperture, whereby the valve is supported and adjusted by rotation, and the valve comprising a broad cone adapted to facilitate flushing operations.

In testimony whereof I aflix my signature in the presence of two witnesses.

HARRY M. MILLER.

Witnesses LEVERETT C. WHEELER, IRMA D. BREMER. 

